diff --git a/kernel/model/export.go b/kernel/model/export.go
index 11b7a092e..b2f2ac21f 100644
--- a/kernel/model/export.go
+++ b/kernel/model/export.go
@@ -1624,6 +1624,10 @@ func exportTree(tree *parse.Tree, wysiwyg, expandKaTexMacros, keepFold bool,
 				return ast.WalkContinue
 			} else if treenode.IsFileAnnotationRef(n) {
 				refID := n.TextMarkFileAnnotationRefID
+				if !strings.Contains(refID, "/") {
+					return ast.WalkSkipChildren
+				}
+
 				status := processFileAnnotationRef(refID, n, fileAnnotationRefMode)
 				unlinks = append(unlinks, n)
 				return status